How To Fix M2778 - Unit & cannot be deleted! It is being used by event &.

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 778

• Message text: Unit & cannot be deleted! It is being used by event &.

What causes this issue?

The unit &V1& was created with the event &V3&.
When you deleted the event &V3&, the unit &V1& should have been deleted
as well. This was not possible, however, because it is still being used
by event &V2&.
Your communication structure cannot be deleted, otherwise updating will
be terminated when event &V2& takes place.

System Response

Event &V3& was deleted nevertheless.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2778 - Unit & cannot be deleted! It is being used by event &. ?

  The SAP error message M2778 indicates that a specific unit of measure (UoM) cannot be deleted because it is currently being used in an event or transaction. This typically occurs in the context of materials management or inventory management within SAP.
  
  Cause:
  
  Active Usage: The unit of measure is actively being used in various transactions, such as purchase orders, sales orders, inventory records, or other related documents.
  Event Association: The error message specifies that the unit of measure is linked to a particular event, which could be a transaction or a process that is currently active in the system.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Usage:
  
  Check where the unit of measure is being used. You can do this by reviewing related documents or transactions in the system.
  Use transaction codes like MM03 (Display Material) to see if the UoM is assigned to any materials.
  
  
  
  Remove Dependencies:
  
  If the UoM is linked to any active